﻿#region Copyright (c) 2006-2012 nHydrate.org, All Rights Reserved
// --------------------------------------------------------------------- *
//                           NHYDRATE.ORG                                *
//              Copyright (c) 2006-2012 All Rights reserved              *
//                                                                       *
//                                                                       *
// This file and its contents are protected by United States and         *
// International copyright laws.  Unauthorized reproduction and/or       *
// distribution of all or any portion of the code contained herein       *
// is strictly prohibited and will result in severe civil and criminal   *
// penalties.  Any violations of this copyright will be prosecuted       *
// to the fullest extent possible under law.                             *
//                                                                       *
// THE SOURCE CODE CONTAINED HEREIN AND IN RELATED FILES IS PROVIDED     *
// TO THE REGISTERED DEVELOPER FOR THE PURPOSES OF EDUCATION AND         *
// TROUBLESHOOTING. UNDER NO CIRCUMSTANCES MAY ANY PORTION OF THE SOURCE *
// CODE BE DISTRIBUTED, DISCLOSED OR OTHERWISE MADE AVAILABLE TO ANY     *
// THIRD PARTY WITHOUT THE EXPRESS WRITTEN CONSENT OF THE NHYDRATE GROUP *
//                                                                       *
// UNDER NO CIRCUMSTANCES MAY THE SOURCE CODE BE USED IN WHOLE OR IN     *
// PART, AS THE BASIS FOR CREATING A PRODUCT THAT PROVIDES THE SAME, OR  *
// SUBSTANTIALLY THE SAME, FUNCTIONALITY AS THIS PRODUCT                 *
//                                                                       *
// THE REGISTERED DEVELOPER ACKNOWLEDGES THAT THIS SOURCE CODE           *
// CONTAINS VALUABLE AND PROPRIETARY TRADE SECRETS OF NHYDRATE,          *
// THE REGISTERED DEVELOPER AGREES TO EXPEND EVERY EFFORT TO             *
// INSURE ITS CONFIDENTIALITY.                                           *
//                                                                       *
// THE END USER LICENSE AGREEMENT (EULA) ACCOMPANYING THE PRODUCT        *
// PERMITS THE REGISTERED DEVELOPER TO REDISTRIBUTE THE PRODUCT IN       *
// EXECUTABLE FORM ONLY IN SUPPORT OF APPLICATIONS WRITTEN USING         *
// THE PRODUCT.  IT DOES NOT PROVIDE ANY RIGHTS REGARDING THE            *
// SOURCE CODE CONTAINED HEREIN.                                         *
//                                                                       *
// THIS COPYRIGHT NOTICE MAY NOT BE REMOVED FROM THIS FILE.              *
// --------------------------------------------------------------------- *
#endregion
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace nHydrate.Dsl.Objects
{
	public class UserDefinedScript : nHydrate.Dsl.IPrecedence
	{
		public UserDefinedScript(string fileName, EnvDTE.Project project)
		{
			if (!File.Exists(fileName))
				throw new Exception("The file '" + fileName + "' does not exists.");

			this.FileName = fileName;
			var text = File.ReadAllText(this.FileName);
			var lines = text.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None);
			var line = lines.FirstOrDefault(x => x.StartsWith("--MODELID: "));
			if (!string.IsNullOrEmpty(line))
			{
				//Set type
				if (fileName.ToLower().Contains(@"\stored procedures\user defined"))
					this.TypeName = "Stored Procedure";
				else if (fileName.ToLower().Contains(@"\views\user defined"))
					this.TypeName = "View";
				else if (fileName.ToLower().Contains(@"\functions\user defined"))
					this.TypeName = "Function";

				var gText = line.Replace("--MODELID:", string.Empty).Trim();
				var pText = "0";
				if (gText.Contains(","))
				{
					var cindex = gText.IndexOf(",");
					pText = gText.Substring(cindex + 1, gText.Length - cindex - 1).Replace("PrecedenceOrder:", string.Empty).Trim();
					gText = gText.Substring(0, cindex);
				}

				this.IsValid = true;
				this.Name = (new FileInfo(this.FileName)).Name;

				Guid g;
				if (Guid.TryParse(gText, out g)) this.ID = g;
				else this.IsValid = false;

				int prec;
				if (int.TryParse(pText, out prec)) this.PrecedenceOrder = prec;
				else this.IsValid = false;

			}

		}

		public void Save()
		{
			if (!this.IsValid) return;

			if (!File.Exists(this.FileName))
				throw new Exception("The file '" + this.FileName + "' does not exists.");

			var text = File.ReadAllText(this.FileName);
			var lines = text.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None).ToList();
			var line = lines.FirstOrDefault(x => x.StartsWith("--MODELID: "));
			if (!string.IsNullOrEmpty(line))
			{
				lines.Remove(x => x.StartsWith("--MODELID: "));
				text = string.Join(Environment.NewLine, lines);
				File.WriteAllText(this.FileName, "--MODELID: " + this.ID + ",PrecedenceOrder:" + this.PrecedenceOrder + Environment.NewLine + text);
			}
		}

		private string FileName { get; set; }

		#region IPrecedence Members

		public int PrecedenceOrder { get; set; }
		public string Name { get; set; }
		public string TypeName { get; private set; }
		public Guid ID { get; private set; }
		public bool IsValid { get; private set; }

		#endregion
	}
}
